im not caribdis, but im pretty sure the mobile version uses compressed images due to apks having a storage budget; if you want to play the pc version on mobile download JoiPlay from the google play store
Don't use Joiplay on play store it's outdated. Download on there official website. Also the difference I noticed on pc version is the log in animation (the wormhole like thing when entering eternum) play smoothly than the android version that lags a bit. Using Poco F3 (SD870)